Investigate, then target creature gets +1/+1 until end of turn for each Clue you control. (To investigate, put a colorless Clue artifact token onto the battlefield with "{2}, Sacrifice this artifact: Draw a card.")

Exile target creature an opponent controls. That player reveals cards from the top of his or her library until a creature card is revealed. The player puts that card onto the battlefield, then shuffles the rest into his or her library.Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)

Tap target creature. It doesn't untap during its controller's next untap step.Rebound (If you cast this spell from your hand, exile it as it resolves. At the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.)

As an additional cost to cast Draconic Roar, you may reveal a Dragon card from your hand.Draconic Roar deals 3 damage to target creature. If you revealed a Dragon card or controlled a Dragon as you cast Draconic Roar, Draconic Roar deals 3 damage to that creature's controller.